Martin Yale (Premier) W12 Wood Base 11 3/4" Paper Cutter & Trimmer Heavy-duty 3/4" thick wood base Through-hardened steel blade cuts up to 20 sheets at once Accurately cuts paper, matte board, cardboard, film, tissue and textiles Permanent 1/2" grid and dual English and metric rulers help to ensure proper alignment Patented automatic blade latch locks with every cutting motion